Fossil Friday #338: Braceville Surprise! #fossils #paleontology #MazonCreek #FossilFriday #stigmaria #lepidodendron #pennsylvanian #carboniferous

Jeff Allen recently sent us photos of a fossil he found at Braceville. The specimen…

https://esconi.org/2026/10/fossil-friday-338-braceville-surprise/

Palaeocast Episodes 175/176: Insect Gigantism #fossils #paleontology #Carboniferous #Pennsylvanian #insects

For some, the Carboniferous is synonymous with large arthropods including the millipede Arthropleura...

https://esconi.org/2026/10/palaeocast-episodes-175-176-insect-gigantism/

Greererpeton burkemorani
had a lot of fun with this one :3, i like the genre of early tetrapodomorph that's just a weird eel salamander
#art #digitalart #sciart #paleoart #carboniferous

Mazon Monday #343: 1990 Mazon Creek Open House #fossils #paleontology #MazonCreek #MazonMonday #pennsylvanian #carboniferous #history

The Mazon Creek Open House was first held in early 1984. It was an extension of the Mazon…

https://esconi.org/2026/10/mazon-monday-343-1990-mazon-creek-open-house/

Quick sketch of Westlothiana lizziae, grabbing some lunch in early #Carboniferous Scotland. Formerly known as an early reptile-like amniote or maybe an amphibian, “Lizzie” was just reinterpreted as more early-diverging tetrapodomorph, possessing fishy gills and spiracles. #sciart #paleoart #fishart

Fossil Friday #337: A Different View of Lepidostrobus #fossils #paleontology #FossilFriday #MazonCreek #pennsylvanian #carboniferous #lepidodendron

Lepidostrobus is a cone from lepidodendron tree.  It was named in…

https://esconi.org/2026/10/fossil-friday-337-a-different-view-of-lepidostrobus/

The club moss ... From giant tree to tiny herb -- a study #clubmoss #evolution #coalswamp #Paleozoic #carboniferous themeaningofwater.com/2024/12/29/c...

Reminder: Mazon Creek Fossil Day 2026 – Saturday, October 10th, 2026 – Coal City Library #fossils #paleontology #MazonCreek #MazonCreekFossilDay #ESCONI #pennsylvanian #carboniferous

The…

https://esconi.org/2026/09/reminder-mazon-creek-fossil-day-2026-saturday-october-10th-2026-coal-city-library/

When giant insects roamed the earth... #carboniferous #insects #evolution themeaningofwater.com/2023/01/29/t...

Mazon Monday #342: Jeanerpeton mazonensis – A new Mazon Creek tetrapod! #fossils #paleontology #MazonCreek #MazonMonday #verebrate #pit11 #Carboniferous #Pennsylvanian #FieldMuseum

The Mazon Creek fossil biota has a new member...…

https://esconi.org/2026/09/mazon-monday-342-jeanerpeton-mazonensis/

Always a pain to prepare, but somewhat showy - Zeacrinites from the Bangor Formation of Alabama.

#crinoid #echinoderm #fossil #carboniferous

Fossil Friday #336: Shark Egg Case from Chowder Flats #fossils #paleontology #MazonCreek #FossilFriday #carboniferous #pennsylvanian #morris #shark #sharkeggcase

Here's a beautiful Palaeoxyris prendeli from Chowder…

https://esconi.org/2026/09/fossil-friday-336-shark-egg-case-from-chowder-flats/

Mazon Monday #341: Titanoscorpio douglassi #fossils #paleontology #MazonCreek #MazonMonday #pennsylvanian #carboniferous #scorpions

Titanoscorpio douglassi is known from just three specimens, but the holotype is a breathtaking…

https://esconi.org/2026/09/mazon-monday-341-titanoscorpio-douglassi/

Fossil Friday #335: A Couple of Beautiful Rhacophyllum #fossils #paleontology #FossilFriday #MazonCreek #paleobotany #carboniferous #pennsylvanian

Long-time member Marty Houdek recently sent me a couple photos of Rhacophyllum from Mazon Creek. The…

https://esconi.org/2026/09/fossil-friday-335/

Eogyrinus, stem tetrapod or stem amniote, from the Carboniferous

#embolomere #sketch #research #reptiliomorph #tetrapoda #carboniferous

ESCONI Field Trip to Danville Shale Pile Fossils – Saturday, October 17th, 2026 #fossils #paleontology #fieldtrip #Danville #carboniferous #ferns #pennsylvanian

Danville Field Trip Rules for…

https://esconi.org/2026/09/esconi-field-trip-to-danville-shale-pile-fossils-saturday-october-17th-2026/

Mazon Creek #340: Neuropteris thompsoniana #fossils #paleontology #MazonMonday #MazonCreek #seedfern #pennsylvanian #carboniferous

This is Mazon Monday post #340.  What’s your favorite Mazon Creek fossil?  Tell us…

https://esconi.org/2026/09/mazon-creek-340-neuropteris-thompsoniana/

PBS Eons: Why Were Sails So Popular 300 Million Years Ago #fossils #paleontology #evolution #dimetrodon #Carboniferous #pennsulvanian

https://youtu.be/IXU43nvmDkE PBS Eons has a new video. This one is about a time when…

https://esconi.org/2026/09/pbs-eons-why-were-so-popular-300-million-years-ago/

The World’s First Bugs Had Way More Legs #fossils #paleontology #Carboniferous #Mississippian #Texas #insect #evolution

https://esconi.org/2026/09/the-worlds-first-bugs-had-way-more-legs/

Fossil Friday #334: Mariopteris from Pit 4 #fossils #paleontology #MazonCreek #FossilFriday #pennsylvanian #carboniferous #seedfern

I was talking to Ralph Jewell and Jeremy Zimmerman at the Braceville field trip a few weeks ago…

https://esconi.org/2026/09/fossil-friday-334-mariopteris-from-pit-4/